How do you level a motorhome front to back?

pnichols wrote:

Jim Shoe wrote:
One of the best things I added to my Fleetwood E-450 'C' was HWH kick down jacks. They deploy in pairs, front or back two, or left or right two. A display is mounted over the dog house showing which button to push until the light goes out. When they're all out, I'm level. Not cheap, but worth every penny when its pouring rain outside, and deploying in pairs keeps the frame from twisting.

Deploying only in pairs?

Hmmm .... we have to level our Class C a lot using by raising one end at the same time as one side. We have to do this on canted camping surfaces. We have found that rarely is a site only low on one end of the the RV or low on one side of the RV. No twisting of the RV's frame results from having to raise at three points because the frame of course winds up level.

I would think that an automatic leveling system would do whatever it had to do with up to three of it's jacks on three corners in order for the coach floor to become level on canted surfaces. In fact, on canted surfaces lifting with only one pair would cause the frame to have to be twisted due to one corner not being in a plane with the others.

I believe what is actually meant is that they adjust only in pairs (once contact is made with the ground). Leveling diagonally merely requires doing two successive operations, side-to-side and front-to-back (or vice-versa). The systems don't let you raise or lower just one corner independently of all the other jacks to avoid torquing the frame excessively.